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Comparing libev/ev.c (file contents):
Revision 1.91 by root, Sun Nov 11 00:06:48 2007 UTC vs.
Revision 1.139 by root, Sun Nov 25 09:24:37 2007 UTC

…		…
32	#ifdef __cplusplus	32	#ifdef __cplusplus
33	extern "C" {	33	extern "C" {
34	#endif	34	#endif
35		35
36	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
		37	# ifdef EV_CONFIG_H
		38	# include EV_CONFIG_H
		39	# else
37	# include "config.h"	40	# include "config.h"
		41	# endif
38		42
39	# if HAVE_CLOCK_GETTIME	43	# if HAVE_CLOCK_GETTIME
		44	# ifndef EV_USE_MONOTONIC
40	# define EV_USE_MONOTONIC 1	45	# define EV_USE_MONOTONIC 1
		46	# endif
		47	# ifndef EV_USE_REALTIME
41	# define EV_USE_REALTIME 1	48	# define EV_USE_REALTIME 1
		49	# endif
		50	# else
		51	# ifndef EV_USE_MONOTONIC
		52	# define EV_USE_MONOTONIC 0
		53	# endif
		54	# ifndef EV_USE_REALTIME
		55	# define EV_USE_REALTIME 0
		56	# endif
42	# endif	57	# endif
43		58
		59	# ifndef EV_USE_SELECT
44	# if HAVE_SELECT && HAVE_SYS_SELECT_H	60	# if HAVE_SELECT && HAVE_SYS_SELECT_H
45	# define EV_USE_SELECT 1	61	# define EV_USE_SELECT 1
		62	# else
		63	# define EV_USE_SELECT 0
		64	# endif
46	# endif	65	# endif
47		66
		67	# ifndef EV_USE_POLL
48	# if HAVE_POLL && HAVE_POLL_H	68	# if HAVE_POLL && HAVE_POLL_H
49	# define EV_USE_POLL 1	69	# define EV_USE_POLL 1
		70	# else
		71	# define EV_USE_POLL 0
		72	# endif
50	# endif	73	# endif
51		74
		75	# ifndef EV_USE_EPOLL
52	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	76	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
53	# define EV_USE_EPOLL 1	77	# define EV_USE_EPOLL 1
		78	# else
		79	# define EV_USE_EPOLL 0
		80	# endif
54	# endif	81	# endif
55		82
		83	# ifndef EV_USE_KQUEUE
56	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	84	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
57	# define EV_USE_KQUEUE 1	85	# define EV_USE_KQUEUE 1
		86	# else
		87	# define EV_USE_KQUEUE 0
		88	# endif
		89	# endif
		90
		91	# ifndef EV_USE_PORT
		92	# if HAVE_PORT_H && HAVE_PORT_CREATE
		93	# define EV_USE_PORT 1
		94	# else
		95	# define EV_USE_PORT 0
		96	# endif
58	# endif	97	# endif
59		98
60	#endif	99	#endif
61		100
62	#include <math.h>	101	#include <math.h>
…		…
71	#include <sys/types.h>	110	#include <sys/types.h>
72	#include <time.h>	111	#include <time.h>
73		112
74	#include <signal.h>	113	#include <signal.h>
75		114
76	#ifndef WIN32	115	#ifndef _WIN32
77	# include <unistd.h>	116	# include <unistd.h>
78	# include <sys/time.h>	117	# include <sys/time.h>
79	# include <sys/wait.h>	118	# include <sys/wait.h>
		119	#else
		120	# define WIN32_LEAN_AND_MEAN
		121	# include <windows.h>
		122	# ifndef EV_SELECT_IS_WINSOCKET
		123	# define EV_SELECT_IS_WINSOCKET 1
80	#endif	124	# endif
		125	#endif
		126
81	/**/	127	/**/
82		128
83	#ifndef EV_USE_MONOTONIC	129	#ifndef EV_USE_MONOTONIC
84	# define EV_USE_MONOTONIC 1	130	# define EV_USE_MONOTONIC 0
		131	#endif
		132
		133	#ifndef EV_USE_REALTIME
		134	# define EV_USE_REALTIME 0
85	#endif	135	#endif
86		136
87	#ifndef EV_USE_SELECT	137	#ifndef EV_USE_SELECT
88	# define EV_USE_SELECT 1	138	# define EV_USE_SELECT 1
89	#endif	139	#endif
90		140
91	#ifndef EV_USE_POLL	141	#ifndef EV_USE_POLL
92	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	142	# ifdef _WIN32
		143	# define EV_USE_POLL 0
		144	# else
		145	# define EV_USE_POLL 1
		146	# endif
93	#endif	147	#endif
94		148
95	#ifndef EV_USE_EPOLL	149	#ifndef EV_USE_EPOLL
96	# define EV_USE_EPOLL 0	150	# define EV_USE_EPOLL 0
97	#endif	151	#endif
98		152
99	#ifndef EV_USE_KQUEUE	153	#ifndef EV_USE_KQUEUE
100	# define EV_USE_KQUEUE 0	154	# define EV_USE_KQUEUE 0
101	#endif	155	#endif
102		156
103	#ifndef EV_USE_WIN32
104	# ifdef WIN32
105	# define EV_USE_WIN32 0 /* it does not exist, use select */
106	# undef EV_USE_SELECT
107	# define EV_USE_SELECT 1
108	# else
109	# define EV_USE_WIN32 0
110	# endif
111	#endif
112
113	#ifndef EV_USE_REALTIME	157	#ifndef EV_USE_PORT
114	# define EV_USE_REALTIME 1	158	# define EV_USE_PORT 0
115	#endif	159	#endif
116		160
117	/**/	161	/**/
118		162
119	#ifndef CLOCK_MONOTONIC	163	#ifndef CLOCK_MONOTONIC
…		…
124	#ifndef CLOCK_REALTIME	168	#ifndef CLOCK_REALTIME
125	# undef EV_USE_REALTIME	169	# undef EV_USE_REALTIME
126	# define EV_USE_REALTIME 0	170	# define EV_USE_REALTIME 0
127	#endif	171	#endif
128		172
		173	#if EV_SELECT_IS_WINSOCKET
		174	# include <winsock.h>
		175	#endif
		176
129	/**/	177	/**/
130		178
131	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	179	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
132	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	180	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
133	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	181	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
134	/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */	182	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
135		183
136	#ifdef EV_H	184	#ifdef EV_H
137	# include EV_H	185	# include EV_H
138	#else	186	#else
139	# include "ev.h"	187	# include "ev.h"
140	#endif	188	#endif
141		189
142	#if __GNUC__ >= 3	190	#if __GNUC__ >= 3
143	# define expect(expr,value) __builtin_expect ((expr),(value))	191	# define expect(expr,value) __builtin_expect ((expr),(value))
144	# define inline inline	192	# define inline static inline
145	#else	193	#else
146	# define expect(expr,value) (expr)	194	# define expect(expr,value) (expr)
147	# define inline static	195	# define inline static
148	#endif	196	#endif
149		197
…		…
151	#define expect_true(expr) expect ((expr) != 0, 1)	199	#define expect_true(expr) expect ((expr) != 0, 1)
152		200
153	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	201	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
154	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	202	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
155		203
		204	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		205	#define EMPTY2(a,b) /* used to suppress some warnings */
		206
156	typedef struct ev_watcher *W;	207	typedef ev_watcher *W;
157	typedef struct ev_watcher_list *WL;	208	typedef ev_watcher_list *WL;
158	typedef struct ev_watcher_time *WT;	209	typedef ev_watcher_time *WT;
159		210
160	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	211	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
161		212
		213	#ifdef _WIN32
162	#include "ev_win32.c"	214	# include "ev_win32.c"
		215	#endif
163		216
164	/*****************************************************************************/	217	/*****************************************************************************/
165		218
166	static void (*syserr_cb)(const char *msg);	219	static void (*syserr_cb)(const char *msg);
167		220
…		…
214	typedef struct	267	typedef struct
215	{	268	{
216	WL head;	269	WL head;
217	unsigned char events;	270	unsigned char events;
218	unsigned char reify;	271	unsigned char reify;
		272	#if EV_SELECT_IS_WINSOCKET
		273	SOCKET handle;
		274	#endif
219	} ANFD;	275	} ANFD;
220		276
221	typedef struct	277	typedef struct
222	{	278	{
223	W w;	279	W w;
…		…
227	#if EV_MULTIPLICITY	283	#if EV_MULTIPLICITY
228		284
229	struct ev_loop	285	struct ev_loop
230	{	286	{
231	ev_tstamp ev_rt_now;	287	ev_tstamp ev_rt_now;
		288	#define ev_rt_now ((loop)->ev_rt_now)
232	#define VAR(name,decl) decl;	289	#define VAR(name,decl) decl;
233	#include "ev_vars.h"	290	#include "ev_vars.h"
234	#undef VAR	291	#undef VAR
235	};	292	};
236	#include "ev_wrap.h"	293	#include "ev_wrap.h"
237		294
238	struct ev_loop default_loop_struct;	295	static struct ev_loop default_loop_struct;
239	static struct ev_loop *default_loop;	296	struct ev_loop *ev_default_loop_ptr;
240		297
241	#else	298	#else
242		299
243	ev_tstamp ev_rt_now;	300	ev_tstamp ev_rt_now;
244	#define VAR(name,decl) static decl;	301	#define VAR(name,decl) static decl;
245	#include "ev_vars.h"	302	#include "ev_vars.h"
246	#undef VAR	303	#undef VAR
247		304
248	static int default_loop;	305	static int ev_default_loop_ptr;
249		306
250	#endif	307	#endif
251		308
252	/*****************************************************************************/	309	/*****************************************************************************/
253		310
254	inline ev_tstamp	311	ev_tstamp
255	ev_time (void)	312	ev_time (void)
256	{	313	{
257	#if EV_USE_REALTIME	314	#if EV_USE_REALTIME
258	struct timespec ts;	315	struct timespec ts;
259	clock_gettime (CLOCK_REALTIME, &ts);	316	clock_gettime (CLOCK_REALTIME, &ts);
…		…
286	{	343	{
287	return ev_rt_now;	344	return ev_rt_now;
288	}	345	}
289	#endif	346	#endif
290		347
291	#define array_roundsize(type,n) ((n) | 4 & ~3)	348	#define array_roundsize(type,n) (((n) | 4) & ~3)
292		349
293	#define array_needsize(type,base,cur,cnt,init) \	350	#define array_needsize(type,base,cur,cnt,init) \
294	if (expect_false ((cnt) > cur)) \	351	if (expect_false ((cnt) > cur)) \
295	{ \	352	{ \
296	int newcnt = cur; \	353	int newcnt = cur; \
…		…
311	stem ## max = array_roundsize (stem ## cnt >> 1); \	368	stem ## max = array_roundsize (stem ## cnt >> 1); \
312	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\	369	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
313	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	370	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
314	}	371	}
315		372
316	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
317	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
318	#define array_free_microshit(stem) \
319	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
320
321	#define array_free(stem, idx) \	373	#define array_free(stem, idx) \
322	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	374	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
323		375
324	/*****************************************************************************/	376	/*****************************************************************************/
325		377
…		…
339	void	391	void
340	ev_feed_event (EV_P_ void *w, int revents)	392	ev_feed_event (EV_P_ void *w, int revents)
341	{	393	{
342	W w_ = (W)w;	394	W w_ = (W)w;
343		395
344	if (w_->pending)	396	if (expect_false (w_->pending))
345	{	397	{
346	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;	398	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
347	return;	399	return;
348	}	400	}
349		401
350	w_->pending = ++pendingcnt [ABSPRI (w_)];	402	w_->pending = ++pendingcnt [ABSPRI (w_)];
351	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	403	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
352	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	404	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
353	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	405	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
354	}	406	}
355		407
356	static void	408	static void
…		…
364		416
365	inline void	417	inline void
366	fd_event (EV_P_ int fd, int revents)	418	fd_event (EV_P_ int fd, int revents)
367	{	419	{
368	ANFD *anfd = anfds + fd;	420	ANFD *anfd = anfds + fd;
369	struct ev_io *w;	421	ev_io *w;
370		422
371	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	423	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
372	{	424	{
373	int ev = w->events & revents;	425	int ev = w->events & revents;
374		426
375	if (ev)	427	if (ev)
376	ev_feed_event (EV_A_ (W)w, ev);	428	ev_feed_event (EV_A_ (W)w, ev);
…		…
383	fd_event (EV_A_ fd, revents);	435	fd_event (EV_A_ fd, revents);
384	}	436	}
385		437
386	/*****************************************************************************/	438	/*****************************************************************************/
387		439
388	static void	440	inline void
389	fd_reify (EV_P)	441	fd_reify (EV_P)
390	{	442	{
391	int i;	443	int i;
392		444
393	for (i = 0; i < fdchangecnt; ++i)	445	for (i = 0; i < fdchangecnt; ++i)
394	{	446	{
395	int fd = fdchanges [i];	447	int fd = fdchanges [i];
396	ANFD *anfd = anfds + fd;	448	ANFD *anfd = anfds + fd;
397	struct ev_io *w;	449	ev_io *w;
398		450
399	int events = 0;	451	int events = 0;
400		452
401	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	453	for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
402	events |= w->events;	454	events |= w->events;
403		455
		456	#if EV_SELECT_IS_WINSOCKET
		457	if (events)
		458	{
		459	unsigned long argp;
		460	anfd->handle = _get_osfhandle (fd);
		461	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		462	}
		463	#endif
		464
404	anfd->reify = 0;	465	anfd->reify = 0;
405		466
406	method_modify (EV_A_ fd, anfd->events, events);	467	backend_modify (EV_A_ fd, anfd->events, events);
407	anfd->events = events;	468	anfd->events = events;
408	}	469	}
409		470
410	fdchangecnt = 0;	471	fdchangecnt = 0;
411	}	472	}
412		473
413	static void	474	static void
414	fd_change (EV_P_ int fd)	475	fd_change (EV_P_ int fd)
415	{	476	{
416	if (anfds [fd].reify)	477	if (expect_false (anfds [fd].reify))
417	return;	478	return;
418		479
419	anfds [fd].reify = 1;	480	anfds [fd].reify = 1;
420		481
421	++fdchangecnt;	482	++fdchangecnt;
422	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	483	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
423	fdchanges [fdchangecnt - 1] = fd;	484	fdchanges [fdchangecnt - 1] = fd;
424	}	485	}
425		486
426	static void	487	static void
427	fd_kill (EV_P_ int fd)	488	fd_kill (EV_P_ int fd)
428	{	489	{
429	struct ev_io *w;	490	ev_io *w;
430		491
431	while ((w = (struct ev_io *)anfds [fd].head))	492	while ((w = (ev_io *)anfds [fd].head))
432	{	493	{
433	ev_io_stop (EV_A_ w);	494	ev_io_stop (EV_A_ w);
434	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	495	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
435	}	496	}
436	}	497	}
437		498
438	static int	499	inline int
439	fd_valid (int fd)	500	fd_valid (int fd)
440	{	501	{
441	#ifdef WIN32	502	#ifdef _WIN32
442	return !!win32_get_osfhandle (fd);	503	return _get_osfhandle (fd) != -1;
443	#else	504	#else
444	return fcntl (fd, F_GETFD) != -1;	505	return fcntl (fd, F_GETFD) != -1;
445	#endif	506	#endif
446	}	507	}
447		508
…		…
469	fd_kill (EV_A_ fd);	530	fd_kill (EV_A_ fd);
470	return;	531	return;
471	}	532	}
472	}	533	}
473		534
474	/* usually called after fork if method needs to re-arm all fds from scratch */	535	/* usually called after fork if backend needs to re-arm all fds from scratch */
475	static void	536	static void
476	fd_rearm_all (EV_P)	537	fd_rearm_all (EV_P)
477	{	538	{
478	int fd;	539	int fd;
479		540
…		…
528	heap [k] = w;	589	heap [k] = w;
529	((W)heap [k])->active = k + 1;	590	((W)heap [k])->active = k + 1;
530	}	591	}
531		592
532	inline void	593	inline void
533	adjustheap (WT *heap, int N, int k, ev_tstamp at)	594	adjustheap (WT *heap, int N, int k)
534	{	595	{
535	ev_tstamp old_at = heap [k]->at;	596	upheap (heap, k);
536	heap [k]->at = at;
537
538	if (old_at < at)
539	downheap (heap, N, k);	597	downheap (heap, N, k);
540	else
541	upheap (heap, k);
542	}	598	}
543		599
544	/*****************************************************************************/	600	/*****************************************************************************/
545		601
546	typedef struct	602	typedef struct
…		…
552	static ANSIG *signals;	608	static ANSIG *signals;
553	static int signalmax;	609	static int signalmax;
554		610
555	static int sigpipe [2];	611	static int sigpipe [2];
556	static sig_atomic_t volatile gotsig;	612	static sig_atomic_t volatile gotsig;
557	static struct ev_io sigev;	613	static ev_io sigev;
558		614
559	static void	615	static void
560	signals_init (ANSIG *base, int count)	616	signals_init (ANSIG *base, int count)
561	{	617	{
562	while (count--)	618	while (count--)
…		…
569	}	625	}
570		626
571	static void	627	static void
572	sighandler (int signum)	628	sighandler (int signum)
573	{	629	{
574	#if WIN32	630	#if _WIN32
575	signal (signum, sighandler);	631	signal (signum, sighandler);
576	#endif	632	#endif
577		633
578	signals [signum - 1].gotsig = 1;	634	signals [signum - 1].gotsig = 1;
579		635
580	if (!gotsig)	636	if (!gotsig)
581	{	637	{
582	int old_errno = errno;	638	int old_errno = errno;
583	gotsig = 1;	639	gotsig = 1;
584	#ifdef WIN32
585	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
586	#else
587	write (sigpipe [1], &signum, 1);	640	write (sigpipe [1], &signum, 1);
588	#endif
589	errno = old_errno;	641	errno = old_errno;
590	}	642	}
591	}	643	}
592		644
593	void	645	void
594	ev_feed_signal_event (EV_P_ int signum)	646	ev_feed_signal_event (EV_P_ int signum)
595	{	647	{
596	WL w;	648	WL w;
597		649
598	#if EV_MULTIPLICITY	650	#if EV_MULTIPLICITY
599	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	651	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
600	#endif	652	#endif
601		653
602	--signum;	654	--signum;
603		655
604	if (signum < 0 || signum >= signalmax)	656	if (signum < 0 || signum >= signalmax)
…		…
609	for (w = signals [signum].head; w; w = w->next)	661	for (w = signals [signum].head; w; w = w->next)
610	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);	662	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
611	}	663	}
612		664
613	static void	665	static void
614	sigcb (EV_P_ struct ev_io *iow, int revents)	666	sigcb (EV_P_ ev_io *iow, int revents)
615	{	667	{
616	int signum;	668	int signum;
617		669
618	#ifdef WIN32
619	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
620	#else
621	read (sigpipe [0], &revents, 1);	670	read (sigpipe [0], &revents, 1);
622	#endif
623	gotsig = 0;	671	gotsig = 0;
624		672
625	for (signum = signalmax; signum--; )	673	for (signum = signalmax; signum--; )
626	if (signals [signum].gotsig)	674	if (signals [signum].gotsig)
627	ev_feed_signal_event (EV_A_ signum + 1);	675	ev_feed_signal_event (EV_A_ signum + 1);
628	}	676	}
629		677
630	static void	678	static void
		679	fd_intern (int fd)
		680	{
		681	#ifdef _WIN32
		682	int arg = 1;
		683	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		684	#else
		685	fcntl (fd, F_SETFD, FD_CLOEXEC);
		686	fcntl (fd, F_SETFL, O_NONBLOCK);
		687	#endif
		688	}
		689
		690	static void
631	siginit (EV_P)	691	siginit (EV_P)
632	{	692	{
633	#ifndef WIN32	693	fd_intern (sigpipe [0]);
634	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	694	fd_intern (sigpipe [1]);
635	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
636
637	/* rather than sort out wether we really need nb, set it */
638	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
639	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
640	#endif
641		695
642	ev_io_set (&sigev, sigpipe [0], EV_READ);	696	ev_io_set (&sigev, sigpipe [0], EV_READ);
643	ev_io_start (EV_A_ &sigev);	697	ev_io_start (EV_A_ &sigev);
644	ev_unref (EV_A); /* child watcher should not keep loop alive */	698	ev_unref (EV_A); /* child watcher should not keep loop alive */
645	}	699	}
646		700
647	/*****************************************************************************/	701	/*****************************************************************************/
648		702
649	static struct ev_child *childs [PID_HASHSIZE];	703	static ev_child *childs [PID_HASHSIZE];
650		704
651	#ifndef WIN32	705	#ifndef _WIN32
652		706
653	static struct ev_signal childev;	707	static ev_signal childev;
654		708
655	#ifndef WCONTINUED	709	#ifndef WCONTINUED
656	# define WCONTINUED 0	710	# define WCONTINUED 0
657	#endif	711	#endif
658		712
659	static void	713	static void
660	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)	714	child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
661	{	715	{
662	struct ev_child *w;	716	ev_child *w;
663		717
664	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)	718	for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
665	if (w->pid == pid || !w->pid)	719	if (w->pid == pid || !w->pid)
666	{	720	{
667	ev_priority (w) = ev_priority (sw); /* need to do it *now* */	721	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
668	w->rpid = pid;	722	w->rpid = pid;
669	w->rstatus = status;	723	w->rstatus = status;
670	ev_feed_event (EV_A_ (W)w, EV_CHILD);	724	ev_feed_event (EV_A_ (W)w, EV_CHILD);
671	}	725	}
672	}	726	}
673		727
674	static void	728	static void
675	childcb (EV_P_ struct ev_signal *sw, int revents)	729	childcb (EV_P_ ev_signal *sw, int revents)
676	{	730	{
677	int pid, status;	731	int pid, status;
678		732
679	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	733	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
680	{	734	{
681	/* make sure we are called again until all childs have been reaped */	735	/* make sure we are called again until all childs have been reaped */
		736	/* we need to do it this way so that the callback gets called before we continue */
682	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	737	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
683		738
684	child_reap (EV_A_ sw, pid, pid, status);	739	child_reap (EV_A_ sw, pid, pid, status);
685	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	740	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
686	}	741	}
687	}	742	}
688		743
689	#endif	744	#endif
690		745
691	/*****************************************************************************/	746	/*****************************************************************************/
692		747
		748	#if EV_USE_PORT
		749	# include "ev_port.c"
		750	#endif
693	#if EV_USE_KQUEUE	751	#if EV_USE_KQUEUE
694	# include "ev_kqueue.c"	752	# include "ev_kqueue.c"
695	#endif	753	#endif
696	#if EV_USE_EPOLL	754	#if EV_USE_EPOLL
697	# include "ev_epoll.c"	755	# include "ev_epoll.c"
…		…
717		775
718	/* return true if we are running with elevated privileges and should ignore env variables */	776	/* return true if we are running with elevated privileges and should ignore env variables */
719	static int	777	static int
720	enable_secure (void)	778	enable_secure (void)
721	{	779	{
722	#ifdef WIN32	780	#ifdef _WIN32
723	return 0;	781	return 0;
724	#else	782	#else
725	return getuid () != geteuid ()	783	return getuid () != geteuid ()
726	|| getgid () != getegid ();	784	|| getgid () != getegid ();
727	#endif	785	#endif
728	}	786	}
729		787
730	int	788	unsigned int
731	ev_method (EV_P)	789	ev_supported_backends (void)
732	{	790	{
733	return method;	791	unsigned int flags = 0;
734	}
735		792
736	static void	793	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
737	loop_init (EV_P_ int methods)	794	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
		795	if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
		796	if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
		797	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
		798
		799	return flags;
		800	}
		801
		802	unsigned int
		803	ev_recommended_backends (void)
738	{	804	{
739	if (!method)	805	unsigned int flags = ev_supported_backends ();
		806
		807	#ifndef __NetBSD__
		808	/* kqueue is borked on everything but netbsd apparently */
		809	/* it usually doesn't work correctly on anything but sockets and pipes */
		810	flags &= ~EVBACKEND_KQUEUE;
		811	#endif
		812	#ifdef __APPLE__
		813	// flags &= ~EVBACKEND_KQUEUE; for documentation
		814	flags &= ~EVBACKEND_POLL;
		815	#endif
		816
		817	return flags;
		818	}
		819
		820	unsigned int
		821	ev_embeddable_backends (void)
		822	{
		823	return EVBACKEND_EPOLL
		824	| EVBACKEND_KQUEUE
		825	| EVBACKEND_PORT;
		826	}
		827
		828	unsigned int
		829	ev_backend (EV_P)
		830	{
		831	return backend;
		832	}
		833
		834	static void
		835	loop_init (EV_P_ unsigned int flags)
		836	{
		837	if (!backend)
740	{	838	{
741	#if EV_USE_MONOTONIC	839	#if EV_USE_MONOTONIC
742	{	840	{
743	struct timespec ts;	841	struct timespec ts;
744	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	842	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
749	ev_rt_now = ev_time ();	847	ev_rt_now = ev_time ();
750	mn_now = get_clock ();	848	mn_now = get_clock ();
751	now_floor = mn_now;	849	now_floor = mn_now;
752	rtmn_diff = ev_rt_now - mn_now;	850	rtmn_diff = ev_rt_now - mn_now;
753		851
754	if (methods == EVMETHOD_AUTO)	852	if (!(flags & EVFLAG_NOENV)
755	if (!enable_secure () && getenv ("LIBEV_METHODS"))	853	&& !enable_secure ()
		854	&& getenv ("LIBEV_FLAGS"))
756	methods = atoi (getenv ("LIBEV_METHODS"));	855	flags = atoi (getenv ("LIBEV_FLAGS"));
757	else
758	methods = EVMETHOD_ANY;
759		856
760	method = 0;	857	if (!(flags & 0x0000ffffUL))
761	#if EV_USE_WIN32	858	flags |= ev_recommended_backends ();
762	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	859
		860	backend = 0;
		861	#if EV_USE_PORT
		862	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
763	#endif	863	#endif
764	#if EV_USE_KQUEUE	864	#if EV_USE_KQUEUE
765	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	865	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
766	#endif	866	#endif
767	#if EV_USE_EPOLL	867	#if EV_USE_EPOLL
768	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	868	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
769	#endif	869	#endif
770	#if EV_USE_POLL	870	#if EV_USE_POLL
771	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	871	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
772	#endif	872	#endif
773	#if EV_USE_SELECT	873	#if EV_USE_SELECT
774	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	874	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
775	#endif	875	#endif
776		876
777	ev_init (&sigev, sigcb);	877	ev_init (&sigev, sigcb);
778	ev_set_priority (&sigev, EV_MAXPRI);	878	ev_set_priority (&sigev, EV_MAXPRI);
779	}	879	}
780	}	880	}
781		881
782	void	882	static void
783	loop_destroy (EV_P)	883	loop_destroy (EV_P)
784	{	884	{
785	int i;	885	int i;
786		886
787	#if EV_USE_WIN32	887	#if EV_USE_PORT
788	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	888	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
789	#endif	889	#endif
790	#if EV_USE_KQUEUE	890	#if EV_USE_KQUEUE
791	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	891	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
792	#endif	892	#endif
793	#if EV_USE_EPOLL	893	#if EV_USE_EPOLL
794	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	894	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
795	#endif	895	#endif
796	#if EV_USE_POLL	896	#if EV_USE_POLL
797	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	897	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
798	#endif	898	#endif
799	#if EV_USE_SELECT	899	#if EV_USE_SELECT
800	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	900	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
801	#endif	901	#endif
802		902
803	for (i = NUMPRI; i--; )	903	for (i = NUMPRI; i--; )
804	array_free (pending, [i]);	904	array_free (pending, [i]);
805		905
806	/* have to use the microsoft-never-gets-it-right macro */	906	/* have to use the microsoft-never-gets-it-right macro */
807	array_free_microshit (fdchange);	907	array_free (fdchange, EMPTY0);
808	array_free_microshit (timer);	908	array_free (timer, EMPTY0);
809	array_free_microshit (periodic);	909	#if EV_PERIODICS
810	array_free_microshit (idle);	910	array_free (periodic, EMPTY0);
811	array_free_microshit (prepare);	911	#endif
812	array_free_microshit (check);	912	array_free (idle, EMPTY0);
		913	array_free (prepare, EMPTY0);
		914	array_free (check, EMPTY0);
813		915
814	method = 0;	916	backend = 0;
815	}	917	}
816		918
817	static void	919	static void
818	loop_fork (EV_P)	920	loop_fork (EV_P)
819	{	921	{
		922	#if EV_USE_PORT
		923	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		924	#endif
		925	#if EV_USE_KQUEUE
		926	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		927	#endif
820	#if EV_USE_EPOLL	928	#if EV_USE_EPOLL
821	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	929	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
822	#endif
823	#if EV_USE_KQUEUE
824	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
825	#endif	930	#endif
826		931
827	if (ev_is_active (&sigev))	932	if (ev_is_active (&sigev))
828	{	933	{
829	/* default loop */	934	/* default loop */
…		…
842	postfork = 0;	947	postfork = 0;
843	}	948	}
844		949
845	#if EV_MULTIPLICITY	950	#if EV_MULTIPLICITY
846	struct ev_loop *	951	struct ev_loop *
847	ev_loop_new (int methods)	952	ev_loop_new (unsigned int flags)
848	{	953	{
849	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	954	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
850		955
851	memset (loop, 0, sizeof (struct ev_loop));	956	memset (loop, 0, sizeof (struct ev_loop));
852		957
853	loop_init (EV_A_ methods);	958	loop_init (EV_A_ flags);
854		959
855	if (ev_method (EV_A))	960	if (ev_backend (EV_A))
856	return loop;	961	return loop;
857		962
858	return 0;	963	return 0;
859	}	964	}
860		965
…		…
873		978
874	#endif	979	#endif
875		980
876	#if EV_MULTIPLICITY	981	#if EV_MULTIPLICITY
877	struct ev_loop *	982	struct ev_loop *
		983	ev_default_loop_init (unsigned int flags)
878	#else	984	#else
879	int	985	int
		986	ev_default_loop (unsigned int flags)
880	#endif	987	#endif
881	ev_default_loop (int methods)
882	{	988	{
883	if (sigpipe [0] == sigpipe [1])	989	if (sigpipe [0] == sigpipe [1])
884	if (pipe (sigpipe))	990	if (pipe (sigpipe))
885	return 0;	991	return 0;
886		992
887	if (!default_loop)	993	if (!ev_default_loop_ptr)
888	{	994	{
889	#if EV_MULTIPLICITY	995	#if EV_MULTIPLICITY
890	struct ev_loop *loop = default_loop = &default_loop_struct;	996	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
891	#else	997	#else
892	default_loop = 1;	998	ev_default_loop_ptr = 1;
893	#endif	999	#endif
894		1000
895	loop_init (EV_A_ methods);	1001	loop_init (EV_A_ flags);
896		1002
897	if (ev_method (EV_A))	1003	if (ev_backend (EV_A))
898	{	1004	{
899	siginit (EV_A);	1005	siginit (EV_A);
900		1006
901	#ifndef WIN32	1007	#ifndef _WIN32
902	ev_signal_init (&childev, childcb, SIGCHLD);	1008	ev_signal_init (&childev, childcb, SIGCHLD);
903	ev_set_priority (&childev, EV_MAXPRI);	1009	ev_set_priority (&childev, EV_MAXPRI);
904	ev_signal_start (EV_A_ &childev);	1010	ev_signal_start (EV_A_ &childev);
905	ev_unref (EV_A); /* child watcher should not keep loop alive */	1011	ev_unref (EV_A); /* child watcher should not keep loop alive */
906	#endif	1012	#endif
907	}	1013	}
908	else	1014	else
909	default_loop = 0;	1015	ev_default_loop_ptr = 0;
910	}	1016	}
911		1017
912	return default_loop;	1018	return ev_default_loop_ptr;
913	}	1019	}
914		1020
915	void	1021	void
916	ev_default_destroy (void)	1022	ev_default_destroy (void)
917	{	1023	{
918	#if EV_MULTIPLICITY	1024	#if EV_MULTIPLICITY
919	struct ev_loop *loop = default_loop;	1025	struct ev_loop *loop = ev_default_loop_ptr;
920	#endif	1026	#endif
921		1027
922	#ifndef WIN32	1028	#ifndef _WIN32
923	ev_ref (EV_A); /* child watcher */	1029	ev_ref (EV_A); /* child watcher */
924	ev_signal_stop (EV_A_ &childev);	1030	ev_signal_stop (EV_A_ &childev);
925	#endif	1031	#endif
926		1032
927	ev_ref (EV_A); /* signal watcher */	1033	ev_ref (EV_A); /* signal watcher */
…		…
935		1041
936	void	1042	void
937	ev_default_fork (void)	1043	ev_default_fork (void)
938	{	1044	{
939	#if EV_MULTIPLICITY	1045	#if EV_MULTIPLICITY
940	struct ev_loop *loop = default_loop;	1046	struct ev_loop *loop = ev_default_loop_ptr;
941	#endif	1047	#endif
942		1048
943	if (method)	1049	if (backend)
944	postfork = 1;	1050	postfork = 1;
945	}	1051	}
946		1052
947	/*****************************************************************************/	1053	/*****************************************************************************/
948		1054
…		…
956	return 1;	1062	return 1;
957		1063
958	return 0;	1064	return 0;
959	}	1065	}
960		1066
961	static void	1067	inline void
962	call_pending (EV_P)	1068	call_pending (EV_P)
963	{	1069	{
964	int pri;	1070	int pri;
965		1071
966	for (pri = NUMPRI; pri--; )	1072	for (pri = NUMPRI; pri--; )
967	while (pendingcnt [pri])	1073	while (pendingcnt [pri])
968	{	1074	{
969	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1075	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
970		1076
971	if (p->w)	1077	if (expect_true (p->w))
972	{	1078	{
		1079	assert (("non-pending watcher on pending list", p->w->pending));
		1080
973	p->w->pending = 0;	1081	p->w->pending = 0;
974	EV_CB_INVOKE (p->w, p->events);	1082	EV_CB_INVOKE (p->w, p->events);
975	}	1083	}
976	}	1084	}
977	}	1085	}
978		1086
979	static void	1087	inline void
980	timers_reify (EV_P)	1088	timers_reify (EV_P)
981	{	1089	{
982	while (timercnt && ((WT)timers [0])->at <= mn_now)	1090	while (timercnt && ((WT)timers [0])->at <= mn_now)
983	{	1091	{
984	struct ev_timer *w = timers [0];	1092	ev_timer *w = timers [0];
985		1093
986	assert (("inactive timer on timer heap detected", ev_is_active (w)));	1094	assert (("inactive timer on timer heap detected", ev_is_active (w)));
987		1095
988	/* first reschedule or stop timer */	1096	/* first reschedule or stop timer */
989	if (w->repeat)	1097	if (w->repeat)
…		…
1001		1109
1002	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1110	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1003	}	1111	}
1004	}	1112	}
1005		1113
1006	static void	1114	#if EV_PERIODICS
		1115	inline void
1007	periodics_reify (EV_P)	1116	periodics_reify (EV_P)
1008	{	1117	{
1009	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1118	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1010	{	1119	{
1011	struct ev_periodic *w = periodics [0];	1120	ev_periodic *w = periodics [0];
1012		1121
1013	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1122	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1014		1123
1015	/* first reschedule or stop timer */	1124	/* first reschedule or stop timer */
1016	if (w->reschedule_cb)	1125	if (w->reschedule_cb)
1017	{	1126	{
1018	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1127	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1019
1020	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1128	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1021	downheap ((WT *)periodics, periodiccnt, 0);	1129	downheap ((WT *)periodics, periodiccnt, 0);
1022	}	1130	}
1023	else if (w->interval)	1131	else if (w->interval)
1024	{	1132	{
…		…
1039	int i;	1147	int i;
1040		1148
1041	/* adjust periodics after time jump */	1149	/* adjust periodics after time jump */
1042	for (i = 0; i < periodiccnt; ++i)	1150	for (i = 0; i < periodiccnt; ++i)
1043	{	1151	{
1044	struct ev_periodic *w = periodics [i];	1152	ev_periodic *w = periodics [i];
1045		1153
1046	if (w->reschedule_cb)	1154	if (w->reschedule_cb)
1047	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1155	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1048	else if (w->interval)	1156	else if (w->interval)
1049	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1157	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
…		…
1051		1159
1052	/* now rebuild the heap */	1160	/* now rebuild the heap */
1053	for (i = periodiccnt >> 1; i--; )	1161	for (i = periodiccnt >> 1; i--; )
1054	downheap ((WT *)periodics, periodiccnt, i);	1162	downheap ((WT *)periodics, periodiccnt, i);
1055	}	1163	}
		1164	#endif
1056		1165
1057	inline int	1166	inline int
1058	time_update_monotonic (EV_P)	1167	time_update_monotonic (EV_P)
1059	{	1168	{
1060	mn_now = get_clock ();	1169	mn_now = get_clock ();
…		…
1070	ev_rt_now = ev_time ();	1179	ev_rt_now = ev_time ();
1071	return 1;	1180	return 1;
1072	}	1181	}
1073	}	1182	}
1074		1183
1075	static void	1184	inline void
1076	time_update (EV_P)	1185	time_update (EV_P)
1077	{	1186	{
1078	int i;	1187	int i;
1079		1188
1080	#if EV_USE_MONOTONIC	1189	#if EV_USE_MONOTONIC
…		…
1082	{	1191	{
1083	if (time_update_monotonic (EV_A))	1192	if (time_update_monotonic (EV_A))
1084	{	1193	{
1085	ev_tstamp odiff = rtmn_diff;	1194	ev_tstamp odiff = rtmn_diff;
1086		1195
1087	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1196	/* loop a few times, before making important decisions.
		1197	* on the choice of "4": one iteration isn't enough,
		1198	* in case we get preempted during the calls to
		1199	* ev_time and get_clock. a second call is almost guarenteed
		1200	* to succeed in that case, though. and looping a few more times
		1201	* doesn't hurt either as we only do this on time-jumps or
		1202	* in the unlikely event of getting preempted here.
		1203	*/
		1204	for (i = 4; --i; )
1088	{	1205	{
1089	rtmn_diff = ev_rt_now - mn_now;	1206	rtmn_diff = ev_rt_now - mn_now;
1090		1207
1091	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1208	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1092	return; /* all is well */	1209	return; /* all is well */
…		…
1094	ev_rt_now = ev_time ();	1211	ev_rt_now = ev_time ();
1095	mn_now = get_clock ();	1212	mn_now = get_clock ();
1096	now_floor = mn_now;	1213	now_floor = mn_now;
1097	}	1214	}
1098		1215
		1216	# if EV_PERIODICS
1099	periodics_reschedule (EV_A);	1217	periodics_reschedule (EV_A);
		1218	# endif
1100	/* no timer adjustment, as the monotonic clock doesn't jump */	1219	/* no timer adjustment, as the monotonic clock doesn't jump */
1101	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1220	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1102	}	1221	}
1103	}	1222	}
1104	else	1223	else
…		…
1106	{	1225	{
1107	ev_rt_now = ev_time ();	1226	ev_rt_now = ev_time ();
1108		1227
1109	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1228	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1110	{	1229	{
		1230	#if EV_PERIODICS
1111	periodics_reschedule (EV_A);	1231	periodics_reschedule (EV_A);
		1232	#endif
1112		1233
1113	/* adjust timers. this is easy, as the offset is the same for all */	1234	/* adjust timers. this is easy, as the offset is the same for all */
1114	for (i = 0; i < timercnt; ++i)	1235	for (i = 0; i < timercnt; ++i)
1115	((WT)timers [i])->at += ev_rt_now - mn_now;	1236	((WT)timers [i])->at += ev_rt_now - mn_now;
1116	}	1237	}
…		…
1134	static int loop_done;	1255	static int loop_done;
1135		1256
1136	void	1257	void
1137	ev_loop (EV_P_ int flags)	1258	ev_loop (EV_P_ int flags)
1138	{	1259	{
1139	double block;
1140	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1260	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
		1261	? EVUNLOOP_ONE
		1262	: EVUNLOOP_CANCEL;
1141		1263
1142	do	1264	while (activecnt)
1143	{	1265	{
1144	/* queue check watchers (and execute them) */	1266	/* queue check watchers (and execute them) */
1145	if (expect_false (preparecnt))	1267	if (expect_false (preparecnt))
1146	{	1268	{
1147	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1269	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1154		1276
1155	/* update fd-related kernel structures */	1277	/* update fd-related kernel structures */
1156	fd_reify (EV_A);	1278	fd_reify (EV_A);
1157		1279
1158	/* calculate blocking time */	1280	/* calculate blocking time */
		1281	{
		1282	double block;
1159		1283
1160	/* we only need this for !monotonic clock or timers, but as we basically	1284	if (flags & EVLOOP_NONBLOCK || idlecnt)
1161	always have timers, we just calculate it always */	1285	block = 0.; /* do not block at all */
		1286	else
		1287	{
		1288	/* update time to cancel out callback processing overhead */
1162	#if EV_USE_MONOTONIC	1289	#if EV_USE_MONOTONIC
1163	if (expect_true (have_monotonic))	1290	if (expect_true (have_monotonic))
1164	time_update_monotonic (EV_A);	1291	time_update_monotonic (EV_A);
1165	else	1292	else
1166	#endif	1293	#endif
1167	{	1294	{
1168	ev_rt_now = ev_time ();	1295	ev_rt_now = ev_time ();
1169	mn_now = ev_rt_now;	1296	mn_now = ev_rt_now;
1170	}	1297	}
1171		1298
1172	if (flags & EVLOOP_NONBLOCK || idlecnt)
1173	block = 0.;
1174	else
1175	{
1176	block = MAX_BLOCKTIME;	1299	block = MAX_BLOCKTIME;
1177		1300
1178	if (timercnt)	1301	if (timercnt)
1179	{	1302	{
1180	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1303	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1181	if (block > to) block = to;	1304	if (block > to) block = to;
1182	}	1305	}
1183		1306
		1307	#if EV_PERIODICS
1184	if (periodiccnt)	1308	if (periodiccnt)
1185	{	1309	{
1186	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1310	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1187	if (block > to) block = to;	1311	if (block > to) block = to;
1188	}	1312	}
		1313	#endif
1189		1314
1190	if (block < 0.) block = 0.;	1315	if (expect_false (block < 0.)) block = 0.;
1191	}	1316	}
1192		1317
1193	method_poll (EV_A_ block);	1318	backend_poll (EV_A_ block);
		1319	}
1194		1320
1195	/* update ev_rt_now, do magic */	1321	/* update ev_rt_now, do magic */
1196	time_update (EV_A);	1322	time_update (EV_A);
1197		1323
1198	/* queue pending timers and reschedule them */	1324	/* queue pending timers and reschedule them */
1199	timers_reify (EV_A); /* relative timers called last */	1325	timers_reify (EV_A); /* relative timers called last */
		1326	#if EV_PERIODICS
1200	periodics_reify (EV_A); /* absolute timers called first */	1327	periodics_reify (EV_A); /* absolute timers called first */
		1328	#endif
1201		1329
1202	/* queue idle watchers unless io or timers are pending */	1330	/* queue idle watchers unless other events are pending */
1203	if (idlecnt && !any_pending (EV_A))	1331	if (idlecnt && !any_pending (EV_A))
1204	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1332	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1205		1333
1206	/* queue check watchers, to be executed first */	1334	/* queue check watchers, to be executed first */
1207	if (checkcnt)	1335	if (expect_false (checkcnt))
1208	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1336	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1209		1337
1210	call_pending (EV_A);	1338	call_pending (EV_A);
1211	}
1212	while (activecnt && !loop_done);
1213		1339
1214	if (loop_done != 2)	1340	if (expect_false (loop_done))
1215	loop_done = 0;	1341	break;
		1342	}
		1343
		1344	if (loop_done == EVUNLOOP_ONE)
		1345	loop_done = EVUNLOOP_CANCEL;
1216	}	1346	}
1217		1347
1218	void	1348	void
1219	ev_unloop (EV_P_ int how)	1349	ev_unloop (EV_P_ int how)
1220	{	1350	{
…		…
1273	}	1403	}
1274		1404
1275	/*****************************************************************************/	1405	/*****************************************************************************/
1276		1406
1277	void	1407	void
1278	ev_io_start (EV_P_ struct ev_io *w)	1408	ev_io_start (EV_P_ ev_io *w)
1279	{	1409	{
1280	int fd = w->fd;	1410	int fd = w->fd;
1281		1411
1282	if (ev_is_active (w))	1412	if (expect_false (ev_is_active (w)))
1283	return;	1413	return;
1284		1414
1285	assert (("ev_io_start called with negative fd", fd >= 0));	1415	assert (("ev_io_start called with negative fd", fd >= 0));
1286		1416
1287	ev_start (EV_A_ (W)w, 1);	1417	ev_start (EV_A_ (W)w, 1);
…		…
1290		1420
1291	fd_change (EV_A_ fd);	1421	fd_change (EV_A_ fd);
1292	}	1422	}
1293		1423
1294	void	1424	void
1295	ev_io_stop (EV_P_ struct ev_io *w)	1425	ev_io_stop (EV_P_ ev_io *w)
1296	{	1426	{
1297	ev_clear_pending (EV_A_ (W)w);	1427	ev_clear_pending (EV_A_ (W)w);
1298	if (!ev_is_active (w))	1428	if (expect_false (!ev_is_active (w)))
1299	return;	1429	return;
1300		1430
1301	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1431	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1302		1432
1303	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1433	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1305		1435
1306	fd_change (EV_A_ w->fd);	1436	fd_change (EV_A_ w->fd);
1307	}	1437	}
1308		1438
1309	void	1439	void
1310	ev_timer_start (EV_P_ struct ev_timer *w)	1440	ev_timer_start (EV_P_ ev_timer *w)
1311	{	1441	{
1312	if (ev_is_active (w))	1442	if (expect_false (ev_is_active (w)))
1313	return;	1443	return;
1314		1444
1315	((WT)w)->at += mn_now;	1445	((WT)w)->at += mn_now;
1316		1446
1317	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1447	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1318		1448
1319	ev_start (EV_A_ (W)w, ++timercnt);	1449	ev_start (EV_A_ (W)w, ++timercnt);
1320	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1450	array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
1321	timers [timercnt - 1] = w;	1451	timers [timercnt - 1] = w;
1322	upheap ((WT *)timers, timercnt - 1);	1452	upheap ((WT *)timers, timercnt - 1);
1323		1453
1324	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1454	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1325	}	1455	}
1326		1456
1327	void	1457	void
1328	ev_timer_stop (EV_P_ struct ev_timer *w)	1458	ev_timer_stop (EV_P_ ev_timer *w)
1329	{	1459	{
1330	ev_clear_pending (EV_A_ (W)w);	1460	ev_clear_pending (EV_A_ (W)w);
1331	if (!ev_is_active (w))	1461	if (expect_false (!ev_is_active (w)))
1332	return;	1462	return;
1333		1463
1334	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1464	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1335		1465
1336	if (((W)w)->active < timercnt--)	1466	if (expect_true (((W)w)->active < timercnt--))
1337	{	1467	{
1338	timers [((W)w)->active - 1] = timers [timercnt];	1468	timers [((W)w)->active - 1] = timers [timercnt];
1339	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1469	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1340	}	1470	}
1341		1471
1342	((WT)w)->at -= mn_now;	1472	((WT)w)->at -= mn_now;
1343		1473
1344	ev_stop (EV_A_ (W)w);	1474	ev_stop (EV_A_ (W)w);
1345	}	1475	}
1346		1476
1347	void	1477	void
1348	ev_timer_again (EV_P_ struct ev_timer *w)	1478	ev_timer_again (EV_P_ ev_timer *w)
1349	{	1479	{
1350	if (ev_is_active (w))	1480	if (ev_is_active (w))
1351	{	1481	{
1352	if (w->repeat)	1482	if (w->repeat)
		1483	{
		1484	((WT)w)->at = mn_now + w->repeat;
1353	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1485	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1486	}
1354	else	1487	else
1355	ev_timer_stop (EV_A_ w);	1488	ev_timer_stop (EV_A_ w);
1356	}	1489	}
1357	else if (w->repeat)	1490	else if (w->repeat)
		1491	{
		1492	w->at = w->repeat;
1358	ev_timer_start (EV_A_ w);	1493	ev_timer_start (EV_A_ w);
		1494	}
1359	}	1495	}
1360		1496
		1497	#if EV_PERIODICS
1361	void	1498	void
1362	ev_periodic_start (EV_P_ struct ev_periodic *w)	1499	ev_periodic_start (EV_P_ ev_periodic *w)
1363	{	1500	{
1364	if (ev_is_active (w))	1501	if (expect_false (ev_is_active (w)))
1365	return;	1502	return;
1366		1503
1367	if (w->reschedule_cb)	1504	if (w->reschedule_cb)
1368	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1505	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1369	else if (w->interval)	1506	else if (w->interval)
…		…
1372	/* this formula differs from the one in periodic_reify because we do not always round up */	1509	/* this formula differs from the one in periodic_reify because we do not always round up */
1373	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1510	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1374	}	1511	}
1375		1512
1376	ev_start (EV_A_ (W)w, ++periodiccnt);	1513	ev_start (EV_A_ (W)w, ++periodiccnt);
1377	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1514	array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1378	periodics [periodiccnt - 1] = w;	1515	periodics [periodiccnt - 1] = w;
1379	upheap ((WT *)periodics, periodiccnt - 1);	1516	upheap ((WT *)periodics, periodiccnt - 1);
1380		1517
1381	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1518	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1382	}	1519	}
1383		1520
1384	void	1521	void
1385	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1522	ev_periodic_stop (EV_P_ ev_periodic *w)
1386	{	1523	{
1387	ev_clear_pending (EV_A_ (W)w);	1524	ev_clear_pending (EV_A_ (W)w);
1388	if (!ev_is_active (w))	1525	if (expect_false (!ev_is_active (w)))
1389	return;	1526	return;
1390		1527
1391	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1528	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1392		1529
1393	if (((W)w)->active < periodiccnt--)	1530	if (expect_true (((W)w)->active < periodiccnt--))
1394	{	1531	{
1395	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1532	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1396	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1533	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1397	}	1534	}
1398		1535
1399	ev_stop (EV_A_ (W)w);	1536	ev_stop (EV_A_ (W)w);
1400	}	1537	}
1401		1538
1402	void	1539	void
1403	ev_periodic_again (EV_P_ struct ev_periodic *w)	1540	ev_periodic_again (EV_P_ ev_periodic *w)
1404	{	1541	{
1405	/* TODO: use adjustheap and recalculation */	1542	/* TODO: use adjustheap and recalculation */
1406	ev_periodic_stop (EV_A_ w);	1543	ev_periodic_stop (EV_A_ w);
1407	ev_periodic_start (EV_A_ w);	1544	ev_periodic_start (EV_A_ w);
1408	}	1545	}
		1546	#endif
1409		1547
1410	void	1548	void
1411	ev_idle_start (EV_P_ struct ev_idle *w)	1549	ev_idle_start (EV_P_ ev_idle *w)
1412	{	1550	{
1413	if (ev_is_active (w))	1551	if (expect_false (ev_is_active (w)))
1414	return;	1552	return;
1415		1553
1416	ev_start (EV_A_ (W)w, ++idlecnt);	1554	ev_start (EV_A_ (W)w, ++idlecnt);
1417	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1555	array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1418	idles [idlecnt - 1] = w;	1556	idles [idlecnt - 1] = w;
1419	}	1557	}
1420		1558
1421	void	1559	void
1422	ev_idle_stop (EV_P_ struct ev_idle *w)	1560	ev_idle_stop (EV_P_ ev_idle *w)
1423	{	1561	{
1424	ev_clear_pending (EV_A_ (W)w);	1562	ev_clear_pending (EV_A_ (W)w);
1425	if (ev_is_active (w))	1563	if (expect_false (!ev_is_active (w)))
1426	return;	1564	return;
1427		1565
		1566	{
		1567	int active = ((W)w)->active;
1428	idles [((W)w)->active - 1] = idles [--idlecnt];	1568	idles [active - 1] = idles [--idlecnt];
		1569	((W)idles [active - 1])->active = active;
		1570	}
		1571
1429	ev_stop (EV_A_ (W)w);	1572	ev_stop (EV_A_ (W)w);
1430	}	1573	}
1431		1574
1432	void	1575	void
1433	ev_prepare_start (EV_P_ struct ev_prepare *w)	1576	ev_prepare_start (EV_P_ ev_prepare *w)
1434	{	1577	{
1435	if (ev_is_active (w))	1578	if (expect_false (ev_is_active (w)))
1436	return;	1579	return;
1437		1580
1438	ev_start (EV_A_ (W)w, ++preparecnt);	1581	ev_start (EV_A_ (W)w, ++preparecnt);
1439	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1582	array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1440	prepares [preparecnt - 1] = w;	1583	prepares [preparecnt - 1] = w;
1441	}	1584	}
1442		1585
1443	void	1586	void
1444	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1587	ev_prepare_stop (EV_P_ ev_prepare *w)
1445	{	1588	{
1446	ev_clear_pending (EV_A_ (W)w);	1589	ev_clear_pending (EV_A_ (W)w);
1447	if (ev_is_active (w))	1590	if (expect_false (!ev_is_active (w)))
1448	return;	1591	return;
1449		1592
		1593	{
		1594	int active = ((W)w)->active;
1450	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1595	prepares [active - 1] = prepares [--preparecnt];
		1596	((W)prepares [active - 1])->active = active;
		1597	}
		1598
1451	ev_stop (EV_A_ (W)w);	1599	ev_stop (EV_A_ (W)w);
1452	}	1600	}
1453		1601
1454	void	1602	void
1455	ev_check_start (EV_P_ struct ev_check *w)	1603	ev_check_start (EV_P_ ev_check *w)
1456	{	1604	{
1457	if (ev_is_active (w))	1605	if (expect_false (ev_is_active (w)))
1458	return;	1606	return;
1459		1607
1460	ev_start (EV_A_ (W)w, ++checkcnt);	1608	ev_start (EV_A_ (W)w, ++checkcnt);
1461	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1609	array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
1462	checks [checkcnt - 1] = w;	1610	checks [checkcnt - 1] = w;
1463	}	1611	}
1464		1612
1465	void	1613	void
1466	ev_check_stop (EV_P_ struct ev_check *w)	1614	ev_check_stop (EV_P_ ev_check *w)
1467	{	1615	{
1468	ev_clear_pending (EV_A_ (W)w);	1616	ev_clear_pending (EV_A_ (W)w);
1469	if (ev_is_active (w))	1617	if (expect_false (!ev_is_active (w)))
1470	return;	1618	return;
1471		1619
		1620	{
		1621	int active = ((W)w)->active;
1472	checks [((W)w)->active - 1] = checks [--checkcnt];	1622	checks [active - 1] = checks [--checkcnt];
		1623	((W)checks [active - 1])->active = active;
		1624	}
		1625
1473	ev_stop (EV_A_ (W)w);	1626	ev_stop (EV_A_ (W)w);
1474	}	1627	}
1475		1628
1476	#ifndef SA_RESTART	1629	#ifndef SA_RESTART
1477	# define SA_RESTART 0	1630	# define SA_RESTART 0
1478	#endif	1631	#endif
1479		1632
1480	void	1633	void
1481	ev_signal_start (EV_P_ struct ev_signal *w)	1634	ev_signal_start (EV_P_ ev_signal *w)
1482	{	1635	{
1483	#if EV_MULTIPLICITY	1636	#if EV_MULTIPLICITY
1484	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1637	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1485	#endif	1638	#endif
1486	if (ev_is_active (w))	1639	if (expect_false (ev_is_active (w)))
1487	return;	1640	return;
1488		1641
1489	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1642	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1490		1643
1491	ev_start (EV_A_ (W)w, 1);	1644	ev_start (EV_A_ (W)w, 1);
1492	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1645	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1493	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1646	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1494		1647
1495	if (!((WL)w)->next)	1648	if (!((WL)w)->next)
1496	{	1649	{
1497	#if WIN32	1650	#if _WIN32
1498	signal (w->signum, sighandler);	1651	signal (w->signum, sighandler);
1499	#else	1652	#else
1500	struct sigaction sa;	1653	struct sigaction sa;
1501	sa.sa_handler = sighandler;	1654	sa.sa_handler = sighandler;
1502	sigfillset (&sa.sa_mask);	1655	sigfillset (&sa.sa_mask);
…		…
1505	#endif	1658	#endif
1506	}	1659	}
1507	}	1660	}
1508		1661
1509	void	1662	void
1510	ev_signal_stop (EV_P_ struct ev_signal *w)	1663	ev_signal_stop (EV_P_ ev_signal *w)
1511	{	1664	{
1512	ev_clear_pending (EV_A_ (W)w);	1665	ev_clear_pending (EV_A_ (W)w);
1513	if (!ev_is_active (w))	1666	if (expect_false (!ev_is_active (w)))
1514	return;	1667	return;
1515		1668
1516	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1669	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1517	ev_stop (EV_A_ (W)w);	1670	ev_stop (EV_A_ (W)w);
1518		1671
1519	if (!signals [w->signum - 1].head)	1672	if (!signals [w->signum - 1].head)
1520	signal (w->signum, SIG_DFL);	1673	signal (w->signum, SIG_DFL);
1521	}	1674	}
1522		1675
1523	void	1676	void
1524	ev_child_start (EV_P_ struct ev_child *w)	1677	ev_child_start (EV_P_ ev_child *w)
1525	{	1678	{
1526	#if EV_MULTIPLICITY	1679	#if EV_MULTIPLICITY
1527	assert (("child watchers are only supported in the default loop", loop == default_loop));	1680	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1528	#endif	1681	#endif
1529	if (ev_is_active (w))	1682	if (expect_false (ev_is_active (w)))
1530	return;	1683	return;
1531		1684
1532	ev_start (EV_A_ (W)w, 1);	1685	ev_start (EV_A_ (W)w, 1);
1533	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1686	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1534	}	1687	}
1535		1688
1536	void	1689	void
1537	ev_child_stop (EV_P_ struct ev_child *w)	1690	ev_child_stop (EV_P_ ev_child *w)
1538	{	1691	{
1539	ev_clear_pending (EV_A_ (W)w);	1692	ev_clear_pending (EV_A_ (W)w);
1540	if (ev_is_active (w))	1693	if (expect_false (!ev_is_active (w)))
1541	return;	1694	return;
1542		1695
1543	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1696	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1544	ev_stop (EV_A_ (W)w);	1697	ev_stop (EV_A_ (W)w);
1545	}	1698	}
1546		1699
		1700	#if EV_MULTIPLICITY
		1701	void
		1702	ev_embed_sweep (EV_P_ ev_embed *w)
		1703	{
		1704	ev_loop (w->loop, EVLOOP_NONBLOCK);
		1705	}
		1706
		1707	static void
		1708	embed_cb (EV_P_ ev_io *io, int revents)
		1709	{
		1710	ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
		1711
		1712	if (ev_cb (w))
		1713	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		1714	else
		1715	ev_embed_sweep (loop, w);
		1716	}
		1717
		1718	void
		1719	ev_embed_start (EV_P_ ev_embed *w)
		1720	{
		1721	if (expect_false (ev_is_active (w)))
		1722	return;
		1723
		1724	{
		1725	struct ev_loop *loop = w->loop;
		1726	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		1727	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		1728	}
		1729
		1730	ev_set_priority (&w->io, ev_priority (w));
		1731	ev_io_start (EV_A_ &w->io);
		1732	ev_start (EV_A_ (W)w, 1);
		1733	}
		1734
		1735	void
		1736	ev_embed_stop (EV_P_ ev_embed *w)
		1737	{
		1738	ev_clear_pending (EV_A_ (W)w);
		1739	if (expect_false (!ev_is_active (w)))
		1740	return;
		1741
		1742	ev_io_stop (EV_A_ &w->io);
		1743	ev_stop (EV_A_ (W)w);
		1744	}
		1745	#endif
		1746
1547	/*****************************************************************************/	1747	/*****************************************************************************/
1548		1748
1549	struct ev_once	1749	struct ev_once
1550	{	1750	{
1551	struct ev_io io;	1751	ev_io io;
1552	struct ev_timer to;	1752	ev_timer to;
1553	void (*cb)(int revents, void *arg);	1753	void (*cb)(int revents, void *arg);
1554	void *arg;	1754	void *arg;
1555	};	1755	};
1556		1756
1557	static void	1757	static void
…		…
1566		1766
1567	cb (revents, arg);	1767	cb (revents, arg);
1568	}	1768	}
1569		1769
1570	static void	1770	static void
1571	once_cb_io (EV_P_ struct ev_io *w, int revents)	1771	once_cb_io (EV_P_ ev_io *w, int revents)
1572	{	1772	{
1573	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	1773	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
1574	}	1774	}
1575		1775
1576	static void	1776	static void
1577	once_cb_to (EV_P_ struct ev_timer *w, int revents)	1777	once_cb_to (EV_P_ ev_timer *w, int revents)
1578	{	1778	{
1579	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	1779	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
1580	}	1780	}
1581		1781
1582	void	1782	void
1583	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	1783	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1584	{	1784	{
1585	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	1785	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1586		1786
1587	if (!once)	1787	if (expect_false (!once))
		1788	{
1588	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	1789	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1589	else	1790	return;
1590	{	1791	}
		1792
1591	once->cb = cb;	1793	once->cb = cb;
1592	once->arg = arg;	1794	once->arg = arg;
1593		1795
1594	ev_init (&once->io, once_cb_io);	1796	ev_init (&once->io, once_cb_io);
1595	if (fd >= 0)	1797	if (fd >= 0)
1596	{	1798	{
1597	ev_io_set (&once->io, fd, events);	1799	ev_io_set (&once->io, fd, events);
1598	ev_io_start (EV_A_ &once->io);	1800	ev_io_start (EV_A_ &once->io);
1599	}	1801	}
1600		1802
1601	ev_init (&once->to, once_cb_to);	1803	ev_init (&once->to, once_cb_to);
1602	if (timeout >= 0.)	1804	if (timeout >= 0.)
1603	{	1805	{
1604	ev_timer_set (&once->to, timeout, 0.);	1806	ev_timer_set (&once->to, timeout, 0.);
1605	ev_timer_start (EV_A_ &once->to);	1807	ev_timer_start (EV_A_ &once->to);
1606	}
1607	}	1808	}
1608	}	1809	}
1609		1810
1610	#ifdef __cplusplus	1811	#ifdef __cplusplus
1611	}	1812	}

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